I'm trans and I brought it up for a couple of reasons: first, Weevil brought up gender affirming surgeries in regards to trans people as part of some slippery slope argument. Secondly, trans medical issues tie very well into my exceptions that I mentioned in the second part of my comment - medical necessity and consent.

You may not have any issues with being circumcised, but there are plenty of men out there who do. To the point that there's a "foreskin restoration" process that involves using clamps and rubber bands to yank on the skin of your penis until it stretches into some resemblance of a foreskin. It doesn't reverse any of the consequences of circumcision, but some men at least feel less dysphoric after doing it. I myself thought that my dysphoria was related to being circumcised before I learned words like "transgender" and "gender dysphoria." Still not a fan of what was done to me, though. Enough to weigh in on conversations around the subject in the way that I have.

Generally, I think it's a situation of "people don't miss what they never knew they had." There's plenty of data from men who were circumcised later in life reporting a loss of sensitivity and difficulty with sexual pleasure and satisfaction post procedure compared to before. And this is why I compare it to being forced through an unwanted puberty. Permanent physical changes that you do not consent to. A baby cannot consent to having their genitals permanently altered. And a trans kid unable to access puberty blockers is as capable of preventing an unwanted puberty as a baby is capable of fighting a doctor/Rabbi/priest/etc.

Now for the exceptions: consent I've kinda already talked about, but if you understand the consequences and want to do it, I don't see why you shouldn't be able to anymore than somebody who wants to get a Prince Albert or a Jacob's Ladder. And the big one, medical necessity. There are a number of reasons that it would be medically necessary, and they're all valid regardless of the age at which they appear. Phimosis is a real thing that can hit at pretty much any age up to post puberty. I once worked with a poor kid who had to get it done for that reason at the age of 18. Although, based on a comment I saw elsewhere in this thread about the number of babies who die from UTIs related to circumcision, there may be some room to talk about what strictly is and isn't "medically necessary."

Basically, if your doctor says that you need to for health reasons or it's your own informed choice, go right ahead. But if you're forcing it on a baby due to peer pressure from the dead or because of some sense of "my dad hit me and I turned out fine," then that isn't right and should not be considered kosher.